/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:45:33,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:45:33,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:45:33,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:45:33,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:45:33,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:45:33,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:45:33,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:45:33,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:45:33,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:45:33,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:45:33,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:45:33,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:45:33,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:45:33,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:45:33,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:45:33,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:45:33,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:45:33,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:45:33,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:45:33,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:45:33,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:45:33,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:45:33,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:45:33,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:45:33,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:45:33,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:45:33,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:45:33,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:45:33,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-06-16 15:45:33,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:45:33,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:45:33,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:45:33,106 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-Delay.epf [2021-06-16 15:45:33,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:45:33,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:45:33,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:45:33,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:45:33,126 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:45:33,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:45:33,126 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:45:33,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:45:33,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:45:33,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:45:33,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:45:33,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:45:33,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:45:33,130 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:45:33,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:45:33,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:45:33,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:45:33,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:45:33,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:45:33,419 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:45:33,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-06-16 15:45:33,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36167ff3b/d658050a50ec434aa19e4ff2e6350907/FLAG4ef339628 [2021-06-16 15:45:34,007 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:45:34,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-06-16 15:45:34,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36167ff3b/d658050a50ec434aa19e4ff2e6350907/FLAG4ef339628 [2021-06-16 15:45:34,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36167ff3b/d658050a50ec434aa19e4ff2e6350907 [2021-06-16 15:45:34,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:45:34,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:45:34,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:45:34,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:45:34,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:45:34,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbdeac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34, skipping insertion in model container [2021-06-16 15:45:34,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:45:34,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:45:34,649 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i[949,962] [2021-06-16 15:45:34,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:45:34,787 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:45:34,796 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i[949,962] [2021-06-16 15:45:34,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:45:34,866 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:45:34,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34 WrapperNode [2021-06-16 15:45:34,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:45:34,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:45:34,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:45:34,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:45:34,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:45:34,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:45:34,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:45:34,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:45:34,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... [2021-06-16 15:45:34,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:45:34,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:45:34,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:45:34,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:45:34,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:45:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:45:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:45:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:45:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:45:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:45:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:45:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:45:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:45:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:45:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:45:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:45:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:45:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:45:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:45:35,017 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:45:35,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:45:35,288 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:45:35,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:45:35 BoogieIcfgContainer [2021-06-16 15:45:35,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:45:35,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:45:35,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:45:35,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:45:35,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:45:34" (1/3) ... [2021-06-16 15:45:35,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fff24f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:45:35, skipping insertion in model container [2021-06-16 15:45:35,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:45:34" (2/3) ... [2021-06-16 15:45:35,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fff24f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:45:35, skipping insertion in model container [2021-06-16 15:45:35,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:45:35" (3/3) ... [2021-06-16 15:45:35,295 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2021-06-16 15:45:35,299 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:45:35,299 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:45:35,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:45:35,299 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:45:35,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:45:35,332 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:45:35,347 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-16 15:45:35,363 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:45:35,363 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:45:35,364 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:45:35,364 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:45:35,364 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:45:35,364 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:45:35,364 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:45:35,364 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:45:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 8010 states have (on average 2.3886392009987514) internal successors, (19133), 9331 states have internal predecessors, (19133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:36,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-16 15:45:36,131 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:45:36,131 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:45:36,132 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:45:36,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:45:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-16 15:45:36,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:45:36,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910634624] [2021-06-16 15:45:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:45:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:45:36,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:36,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:36,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:36,458 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:45:36,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:45:36,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:36,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:36,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:36,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:36,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:36,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:45:36,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:45:36,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910634624] [2021-06-16 15:45:36,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910634624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:45:36,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:45:36,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:45:36,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876929801] [2021-06-16 15:45:36,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:45:36,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:45:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:45:36,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:45:36,561 INFO L87 Difference]: Start difference. First operand has 9332 states, 8010 states have (on average 2.3886392009987514) internal successors, (19133), 9331 states have internal predecessors, (19133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:36,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:45:36,857 INFO L93 Difference]: Finished difference Result 11439 states and 22565 transitions. [2021-06-16 15:45:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:45:36,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-16 15:45:36,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:45:36,880 INFO L225 Difference]: With dead ends: 11439 [2021-06-16 15:45:36,880 INFO L226 Difference]: Without dead ends: 2380 [2021-06-16 15:45:36,881 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 123.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:45:36,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2021-06-16 15:45:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2380. [2021-06-16 15:45:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2331 states have (on average 2.1969111969111967) internal successors, (5121), 2379 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 5121 transitions. [2021-06-16 15:45:36,989 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 5121 transitions. Word has length 49 [2021-06-16 15:45:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:45:36,989 INFO L482 AbstractCegarLoop]: Abstraction has 2380 states and 5121 transitions. [2021-06-16 15:45:36,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 5121 transitions. [2021-06-16 15:45:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-16 15:45:36,993 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:45:36,993 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:45:36,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:45:36,994 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:45:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:45:36,994 INFO L82 PathProgramCache]: Analyzing trace with hash -768513544, now seen corresponding path program 1 times [2021-06-16 15:45:36,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:45:36,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635168462] [2021-06-16 15:45:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:45:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:45:37,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:37,070 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:45:37,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:45:37,080 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:45:37,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:45:37,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:45:37,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:45:37,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635168462] [2021-06-16 15:45:37,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635168462] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:45:37,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:45:37,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:45:37,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606044575] [2021-06-16 15:45:37,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:45:37,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:45:37,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:45:37,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:45:37,127 INFO L87 Difference]: Start difference. First operand 2380 states and 5121 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:45:37,349 INFO L93 Difference]: Finished difference Result 4066 states and 9354 transitions. [2021-06-16 15:45:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:45:37,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-16 15:45:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:45:37,357 INFO L225 Difference]: With dead ends: 4066 [2021-06-16 15:45:37,357 INFO L226 Difference]: Without dead ends: 1620 [2021-06-16 15:45:37,359 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 161.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:45:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2021-06-16 15:45:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1310. [2021-06-16 15:45:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1275 states have (on average 2.23921568627451) internal successors, (2855), 1309 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2855 transitions. [2021-06-16 15:45:37,417 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2855 transitions. Word has length 52 [2021-06-16 15:45:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:45:37,417 INFO L482 AbstractCegarLoop]: Abstraction has 1310 states and 2855 transitions. [2021-06-16 15:45:37,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2855 transitions. [2021-06-16 15:45:37,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-16 15:45:37,429 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:45:37,429 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:45:37,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:45:37,430 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:45:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:45:37,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1983563569, now seen corresponding path program 1 times [2021-06-16 15:45:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:45:37,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510756564] [2021-06-16 15:45:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:45:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:45:37,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:37,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:37,524 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:45:37,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:45:37,539 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:45:37,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:45:37,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:45:37,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:45:37,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510756564] [2021-06-16 15:45:37,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510756564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:45:37,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:45:37,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:45:37,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400401894] [2021-06-16 15:45:37,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:45:37,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:45:37,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:45:37,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:45:37,582 INFO L87 Difference]: Start difference. First operand 1310 states and 2855 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:45:37,674 INFO L93 Difference]: Finished difference Result 2056 states and 4744 transitions. [2021-06-16 15:45:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 15:45:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-16 15:45:37,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:45:37,681 INFO L225 Difference]: With dead ends: 2056 [2021-06-16 15:45:37,681 INFO L226 Difference]: Without dead ends: 1170 [2021-06-16 15:45:37,681 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 81.8ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:45:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2021-06-16 15:45:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 946. [2021-06-16 15:45:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 922 states have (on average 2.279826464208243) internal successors, (2102), 945 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 2102 transitions. [2021-06-16 15:45:37,713 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 2102 transitions. Word has length 54 [2021-06-16 15:45:37,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:45:37,715 INFO L482 AbstractCegarLoop]: Abstraction has 946 states and 2102 transitions. [2021-06-16 15:45:37,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 2102 transitions. [2021-06-16 15:45:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-16 15:45:37,717 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:45:37,717 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:45:37,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:45:37,718 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:45:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:45:37,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1493668220, now seen corresponding path program 1 times [2021-06-16 15:45:37,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:45:37,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937850373] [2021-06-16 15:45:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:45:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:45:37,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:37,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:37,801 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:45:37,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:45:37,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:37,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:37,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:45:37,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:45:37,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937850373] [2021-06-16 15:45:37,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937850373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:45:37,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:45:37,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:45:37,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379074496] [2021-06-16 15:45:37,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:45:37,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:45:37,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:45:37,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:45:37,838 INFO L87 Difference]: Start difference. First operand 946 states and 2102 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:45:37,947 INFO L93 Difference]: Finished difference Result 1050 states and 2394 transitions. [2021-06-16 15:45:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:45:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-16 15:45:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:45:37,950 INFO L225 Difference]: With dead ends: 1050 [2021-06-16 15:45:37,950 INFO L226 Difference]: Without dead ends: 533 [2021-06-16 15:45:37,951 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 110.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:45:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-06-16 15:45:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2021-06-16 15:45:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 513 states have (on average 2.189083820662768) internal successors, (1123), 532 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 1123 transitions. [2021-06-16 15:45:37,959 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 1123 transitions. Word has length 57 [2021-06-16 15:45:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:45:37,959 INFO L482 AbstractCegarLoop]: Abstraction has 533 states and 1123 transitions. [2021-06-16 15:45:37,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 1123 transitions. [2021-06-16 15:45:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-16 15:45:37,970 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:45:37,971 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:45:37,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:45:37,971 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:45:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:45:37,972 INFO L82 PathProgramCache]: Analyzing trace with hash 78913218, now seen corresponding path program 1 times [2021-06-16 15:45:37,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:45:37,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666300645] [2021-06-16 15:45:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:45:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:45:38,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:38,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:38,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:45:38,042 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:45:38,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:45:38,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:38,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:45:38,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:45:38,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:45:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:45:38,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:45:38,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666300645] [2021-06-16 15:45:38,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666300645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:45:38,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:45:38,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:45:38,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340974652] [2021-06-16 15:45:38,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:45:38,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:45:38,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:45:38,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:45:38,077 INFO L87 Difference]: Start difference. First operand 533 states and 1123 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:38,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:45:38,174 INFO L93 Difference]: Finished difference Result 413 states and 839 transitions. [2021-06-16 15:45:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:45:38,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-16 15:45:38,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:45:38,176 INFO L225 Difference]: With dead ends: 413 [2021-06-16 15:45:38,177 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:45:38,177 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 106.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:45:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:45:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:45:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:45:38,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-16 15:45:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:45:38,178 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:45:38,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:45:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:45:38,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:45:38,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:45:38,180 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:45:38,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:45:38 BasicIcfg [2021-06-16 15:45:38,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:45:38,184 INFO L168 Benchmark]: Toolchain (without parser) took 3723.18 ms. Allocated memory was 192.9 MB in the beginning and 447.7 MB in the end (delta: 254.8 MB). Free memory was 155.4 MB in the beginning and 351.9 MB in the end (delta: -196.5 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,185 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 192.9 MB. Free memory was 173.7 MB in the beginning and 173.7 MB in the end (delta: 79.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:45:38,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.93 ms. Allocated memory is still 192.9 MB. Free memory was 155.2 MB in the beginning and 153.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.45 ms. Allocated memory is still 192.9 MB. Free memory was 153.6 MB in the beginning and 152.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,185 INFO L168 Benchmark]: Boogie Preprocessor took 32.91 ms. Allocated memory is still 192.9 MB. Free memory was 152.1 MB in the beginning and 150.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,186 INFO L168 Benchmark]: RCFGBuilder took 343.36 ms. Allocated memory is still 192.9 MB. Free memory was 150.5 MB in the beginning and 126.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,188 INFO L168 Benchmark]: TraceAbstraction took 2890.50 ms. Allocated memory was 192.9 MB in the beginning and 447.7 MB in the end (delta: 254.8 MB). Free memory was 126.4 MB in the beginning and 351.9 MB in the end (delta: -225.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. [2021-06-16 15:45:38,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 192.9 MB. Free memory was 173.7 MB in the beginning and 173.7 MB in the end (delta: 79.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 408.93 ms. Allocated memory is still 192.9 MB. Free memory was 155.2 MB in the beginning and 153.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.45 ms. Allocated memory is still 192.9 MB. Free memory was 153.6 MB in the beginning and 152.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.91 ms. Allocated memory is still 192.9 MB. Free memory was 152.1 MB in the beginning and 150.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 343.36 ms. Allocated memory is still 192.9 MB. Free memory was 150.5 MB in the beginning and 126.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2890.50 ms. Allocated memory was 192.9 MB in the beginning and 447.7 MB in the end (delta: 254.8 MB). Free memory was 126.4 MB in the beginning and 351.9 MB in the end (delta: -225.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 34220, positive: 32503, positive conditional: 32503, positive unconditional: 0, negative: 1717, negative conditional: 1717, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33704, positive: 32503, positive conditional: 0, positive unconditional: 32503, negative: 1201, negative conditional: 0, negative unconditional: 1201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 884, positive: 865, positive conditional: 0, positive unconditional: 865, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 884, positive: 862, positive conditional: 0, positive unconditional: 862, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33704, positive: 31638, positive conditional: 0, positive unconditional: 31638, negative: 1182, negative conditional: 0, negative unconditional: 1182, unknown: 884, unknown conditional: 0, unknown unconditional: 884] , Statistics on independence cache: Total cache size (in pairs): 884, Positive cache size: 865, Positive conditional cache size: 0, Positive unconditional cache size: 865, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 516 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2817.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 68.6ms, AutomataDifference: 917.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 725.2ms, PartialOrderReductionTime: 710.2ms, HoareTripleCheckerStatistics: 507 SDtfs, 637 SDslu, 1768 SDs, 0 SdLazy, 178 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 143.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 583.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 194.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 534 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.5ms SsaConstructionTime, 165.9ms SatisfiabilityAnalysisTime, 567.7ms InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...