/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:04:23,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:04:23,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:04:23,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:04:23,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:04:23,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:04:23,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:04:23,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:04:23,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:04:23,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:04:23,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:04:23,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:04:23,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:04:23,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:04:23,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:04:23,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:04:23,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:04:23,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:04:23,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:04:23,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:04:23,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:04:23,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:04:23,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:04:23,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:04:23,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-18 00:04:23,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:04:23,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:04:23,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:04:23,741 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-keepdead.epf [2020-12-18 00:04:23,768 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:04:23,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:04:23,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:04:23,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:04:23,771 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:04:23,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:04:23,771 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:04:23,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:04:23,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:04:23,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:04:23,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:04:23,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:04:23,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:04:23,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:04:23,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:04:23,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:04:23,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:04:23,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:04:23,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:04:23,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:04:23,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:04:23,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:04:23,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:04:23,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:04:23,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:04:23,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:04:23,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:04:23,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:04:23,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:04:23,776 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:04:23,776 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:04:23,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:04:24,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:04:24,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:04:24,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:04:24,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:04:24,197 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:04:24,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-12-18 00:04:24,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950882849/def98f9c740f4456af0cebe8d50213d4/FLAG2b9ed44fe [2020-12-18 00:04:25,009 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:04:25,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-12-18 00:04:25,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950882849/def98f9c740f4456af0cebe8d50213d4/FLAG2b9ed44fe [2020-12-18 00:04:25,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950882849/def98f9c740f4456af0cebe8d50213d4 [2020-12-18 00:04:25,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:04:25,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:04:25,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:25,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:04:25,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:04:25,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:25" (1/1) ... [2020-12-18 00:04:25,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9166b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:25, skipping insertion in model container [2020-12-18 00:04:25,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:25" (1/1) ... [2020-12-18 00:04:25,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:04:25,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:04:25,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:25,824 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:04:25,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:26,002 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:04:26,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26 WrapperNode [2020-12-18 00:04:26,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:26,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:26,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:04:26,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:04:26,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:26,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:04:26,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:04:26,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:04:26,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (1/1) ... [2020-12-18 00:04:26,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:04:26,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:04:26,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:04:26,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:04:26,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (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 [2020-12-18 00:04:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:04:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:04:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:04:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:04:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:04:26,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:04:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:04:26,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:04:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:04:26,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:04:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-18 00:04:26,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-18 00:04:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:04:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:04:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:04:26,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:04:26,246 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:04:26,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:04:26,908 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:04:26,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:26 BoogieIcfgContainer [2020-12-18 00:04:26,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:04:26,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:04:26,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:04:26,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:04:26,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:04:25" (1/3) ... [2020-12-18 00:04:26,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de936e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:26, skipping insertion in model container [2020-12-18 00:04:26,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:26" (2/3) ... [2020-12-18 00:04:26,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de936e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:26, skipping insertion in model container [2020-12-18 00:04:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:26" (3/3) ... [2020-12-18 00:04:26,921 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-12-18 00:04:26,941 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:04:26,941 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:04:26,945 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:04:26,946 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:04:27,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,011 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,012 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,012 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,015 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,015 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,025 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,043 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,053 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:27,063 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:04:27,076 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-18 00:04:27,113 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:04:27,113 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:04:27,113 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:04:27,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:04:27,114 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:04:27,114 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:04:27,114 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:04:27,114 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:04:27,135 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-12-18 00:04:41,206 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-12-18 00:04:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-12-18 00:04:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-18 00:04:41,602 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:41,603 INFO L504 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] [2020-12-18 00:04:41,604 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:41,615 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-12-18 00:04:41,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:41,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246079165] [2020-12-18 00:04:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:42,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246079165] [2020-12-18 00:04:42,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:42,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:42,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854589299] [2020-12-18 00:04:42,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:42,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:42,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:42,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:42,524 INFO L87 Difference]: Start difference. First operand has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:45,021 INFO L93 Difference]: Finished difference Result 93543 states and 406523 transitions. [2020-12-18 00:04:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:45,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-12-18 00:04:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:45,041 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:04:45,041 INFO L78 Accepts]: Start accepts. Automaton has 93543 states and 406523 transitions. Word has length 49 [2020-12-18 00:04:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:45,047 INFO L481 AbstractCegarLoop]: Abstraction has 93543 states and 406523 transitions. [2020-12-18 00:04:45,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 93543 states and 406523 transitions. [2020-12-18 00:04:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-18 00:04:45,214 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:45,214 INFO L504 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] [2020-12-18 00:04:45,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:04:45,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2026880935, now seen corresponding path program 1 times [2020-12-18 00:04:45,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:45,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633811446] [2020-12-18 00:04:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:45,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633811446] [2020-12-18 00:04:45,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:45,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:45,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345265676] [2020-12-18 00:04:45,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:45,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:45,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:45,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:45,501 INFO L87 Difference]: Start difference. First operand 93543 states and 406523 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2020-12-18 00:04:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:47,956 INFO L93 Difference]: Finished difference Result 138623 states and 599247 transitions. [2020-12-18 00:04:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:47,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2020-12-18 00:04:47,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:47,958 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:04:47,958 INFO L78 Accepts]: Start accepts. Automaton has 138623 states and 599247 transitions. Word has length 51 [2020-12-18 00:04:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:47,959 INFO L481 AbstractCegarLoop]: Abstraction has 138623 states and 599247 transitions. [2020-12-18 00:04:47,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2020-12-18 00:04:47,960 INFO L276 IsEmpty]: Start isEmpty. Operand 138623 states and 599247 transitions. [2020-12-18 00:04:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-18 00:04:48,095 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:48,095 INFO L504 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] [2020-12-18 00:04:48,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:04:48,096 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash 412575002, now seen corresponding path program 1 times [2020-12-18 00:04:48,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:48,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935844568] [2020-12-18 00:04:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:48,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935844568] [2020-12-18 00:04:48,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:48,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:48,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872183904] [2020-12-18 00:04:48,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:48,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:48,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:48,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:48,395 INFO L87 Difference]: Start difference. First operand 138623 states and 599247 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:51,127 INFO L93 Difference]: Finished difference Result 217863 states and 936639 transitions. [2020-12-18 00:04:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-12-18 00:04:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:51,129 INFO L763 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 [2020-12-18 00:04:51,130 INFO L78 Accepts]: Start accepts. Automaton has 217863 states and 936639 transitions. Word has length 53 [2020-12-18 00:04:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:51,130 INFO L481 AbstractCegarLoop]: Abstraction has 217863 states and 936639 transitions. [2020-12-18 00:04:51,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 217863 states and 936639 transitions. [2020-12-18 00:04:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:04:51,275 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:51,275 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:04:51,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:04:51,276 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:51,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:51,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1670743673, now seen corresponding path program 1 times [2020-12-18 00:04:51,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:51,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395456418] [2020-12-18 00:04:51,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:51,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395456418] [2020-12-18 00:04:51,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:51,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:51,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480628139] [2020-12-18 00:04:51,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:51,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:51,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:51,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:51,974 INFO L87 Difference]: Start difference. First operand 217863 states and 936639 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:56,516 INFO L93 Difference]: Finished difference Result 316363 states and 1346319 transitions. [2020-12-18 00:04:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:04:56,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-12-18 00:04:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:56,519 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:04:56,519 INFO L78 Accepts]: Start accepts. Automaton has 316363 states and 1346319 transitions. Word has length 55 [2020-12-18 00:04:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:56,522 INFO L481 AbstractCegarLoop]: Abstraction has 316363 states and 1346319 transitions. [2020-12-18 00:04:56,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 316363 states and 1346319 transitions. [2020-12-18 00:04:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-18 00:04:56,846 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:56,847 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:04:56,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:04:56,847 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:56,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1313260234, now seen corresponding path program 1 times [2020-12-18 00:04:56,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:56,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859334845] [2020-12-18 00:04:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:57,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859334845] [2020-12-18 00:04:57,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:57,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:57,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292824636] [2020-12-18 00:04:57,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:57,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:57,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:57,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:57,030 INFO L87 Difference]: Start difference. First operand 316363 states and 1346319 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2020-12-18 00:05:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:03,882 INFO L93 Difference]: Finished difference Result 528523 states and 2222927 transitions. [2020-12-18 00:05:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:03,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2020-12-18 00:05:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:03,883 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:03,883 INFO L78 Accepts]: Start accepts. Automaton has 528523 states and 2222927 transitions. Word has length 58 [2020-12-18 00:05:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:03,884 INFO L481 AbstractCegarLoop]: Abstraction has 528523 states and 2222927 transitions. [2020-12-18 00:05:03,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2020-12-18 00:05:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 528523 states and 2222927 transitions. [2020-12-18 00:05:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-18 00:05:04,285 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:05:04,285 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:05:04,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-18 00:05:04,285 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:05:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:05:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 655749958, now seen corresponding path program 1 times [2020-12-18 00:05:04,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:05:04,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411716597] [2020-12-18 00:05:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:05:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:05:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:05:04,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411716597] [2020-12-18 00:05:04,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:05:04,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:05:04,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194095220] [2020-12-18 00:05:04,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:05:04,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:05:04,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:05:04,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:05:04,415 INFO L87 Difference]: Start difference. First operand 528523 states and 2222927 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-12-18 00:05:14,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:14,156 INFO L93 Difference]: Finished difference Result 756203 states and 3156231 transitions. [2020-12-18 00:05:14,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-12-18 00:05:14,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:14,158 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:14,158 INFO L78 Accepts]: Start accepts. Automaton has 756203 states and 3156231 transitions. Word has length 59 [2020-12-18 00:05:14,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:14,159 INFO L481 AbstractCegarLoop]: Abstraction has 756203 states and 3156231 transitions. [2020-12-18 00:05:14,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-12-18 00:05:14,159 INFO L276 IsEmpty]: Start isEmpty. Operand 756203 states and 3156231 transitions. [2020-12-18 00:05:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-18 00:05:15,893 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:05:15,894 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:05:15,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-18 00:05:15,894 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:05:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:05:15,895 INFO L82 PathProgramCache]: Analyzing trace with hash 792710772, now seen corresponding path program 1 times [2020-12-18 00:05:15,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:05:15,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249347874] [2020-12-18 00:05:15,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:05:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:05:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:05:16,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249347874] [2020-12-18 00:05:16,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:05:16,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:05:16,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836205366] [2020-12-18 00:05:16,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:05:16,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:05:16,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:05:16,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:05:16,066 INFO L87 Difference]: Start difference. First operand 756203 states and 3156231 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2020-12-18 00:05:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:05:29,304 INFO L93 Difference]: Finished difference Result 1071563 states and 4443759 transitions. [2020-12-18 00:05:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:05:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2020-12-18 00:05:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:05:29,305 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:05:29,306 INFO L78 Accepts]: Start accepts. Automaton has 1071563 states and 4443759 transitions. Word has length 60 [2020-12-18 00:05:29,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:05:29,306 INFO L481 AbstractCegarLoop]: Abstraction has 1071563 states and 4443759 transitions. [2020-12-18 00:05:29,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2020-12-18 00:05:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1071563 states and 4443759 transitions. [2020-12-18 00:05:36,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:05:36,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-18 00:05:36,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:05:36 BasicIcfg [2020-12-18 00:05:36,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:05:36,971 INFO L168 Benchmark]: Toolchain (without parser) took 71713.20 ms. Allocated memory was 302.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 276.1 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.9 GB. Max. memory is 16.0 GB. [2020-12-18 00:05:36,972 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:05:36,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.87 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 244.7 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:36,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.81 ms. Allocated memory is still 302.0 MB. Free memory was 244.7 MB in the beginning and 285.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:36,982 INFO L168 Benchmark]: Boogie Preprocessor took 69.50 ms. Allocated memory is still 302.0 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:36,988 INFO L168 Benchmark]: RCFGBuilder took 756.13 ms. Allocated memory is still 302.0 MB. Free memory was 283.1 MB in the beginning and 257.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-12-18 00:05:36,989 INFO L168 Benchmark]: TraceAbstraction took 70054.32 ms. Allocated memory was 302.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 256.9 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.9 GB. Max. memory is 16.0 GB. [2020-12-18 00:05:37,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 740.87 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 244.7 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.81 ms. Allocated memory is still 302.0 MB. Free memory was 244.7 MB in the beginning and 285.2 MB in the end (delta: -40.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 69.50 ms. Allocated memory is still 302.0 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 756.13 ms. Allocated memory is still 302.0 MB. Free memory was 283.1 MB in the beginning and 257.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 70054.32 ms. Allocated memory was 302.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 256.9 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.9 GB. 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 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 69.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.0s, HoareTripleCheckerStatistics: 1058 SDtfs, 2425 SDslu, 3628 SDs, 0 SdLazy, 255 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1071563occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58728 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...