/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:24:54,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:24:54,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:24:54,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:24:54,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:24:54,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:24:54,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:24:54,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:24:54,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:24:54,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:24:54,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:24:54,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:24:54,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:24:54,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:24:54,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:24:54,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:24:54,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:24:54,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:24:54,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:24:54,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:24:54,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:24:54,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:24:54,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:24:54,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:24:54,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:24:54,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:24:54,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:24:54,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:24:54,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:24:54,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:24:54,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:24:54,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:24:54,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:24:54,852 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:24:54,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:24:54,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:24:54,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:24:54,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:24:54,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:24:54,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:24:54,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:24:54,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:24:54,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:24:54,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:24:54,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:24:54,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:24:54,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:24:54,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:24:54,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:24:54,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:24:54,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:24:54,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:24:54,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:24:54,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:24:54,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:24:54,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:24:54,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:24:54,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:24:54,857 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:24:54,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:24:55,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:24:55,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:24:55,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:24:55,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:24:55,285 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:24:55,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2021-01-26 17:24:55,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a5d844f/75db13b91e5a46dca0039426f996dc85/FLAGc3a3ebd08 [2021-01-26 17:24:56,185 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:24:56,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2021-01-26 17:24:56,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a5d844f/75db13b91e5a46dca0039426f996dc85/FLAGc3a3ebd08 [2021-01-26 17:24:56,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a5d844f/75db13b91e5a46dca0039426f996dc85 [2021-01-26 17:24:56,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:24:56,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:24:56,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:24:56,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:24:56,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:24:56,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:24:56" (1/1) ... [2021-01-26 17:24:56,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667e78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:56, skipping insertion in model container [2021-01-26 17:24:56,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:24:56" (1/1) ... [2021-01-26 17:24:56,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:24:56,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:24:56,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:24:56,969 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:24:57,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:24:57,200 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:24:57,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57 WrapperNode [2021-01-26 17:24:57,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:24:57,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:24:57,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:24:57,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:24:57,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:24:57,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:24:57,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:24:57,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:24:57,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (1/1) ... [2021-01-26 17:24:57,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:24:57,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:24:57,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:24:57,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:24:57,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (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 [2021-01-26 17:24:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:24:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:24:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:24:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:24:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:24:57,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:24:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:24:57,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:24:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:24:57,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:24:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:24:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:24:57,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:24:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:24:57,393 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:24:57,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:24:57,973 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:24:57,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:24:57 BoogieIcfgContainer [2021-01-26 17:24:57,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:24:57,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:24:57,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:24:57,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:24:57,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:24:56" (1/3) ... [2021-01-26 17:24:57,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc838bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:24:57, skipping insertion in model container [2021-01-26 17:24:57,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:57" (2/3) ... [2021-01-26 17:24:57,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc838bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:24:57, skipping insertion in model container [2021-01-26 17:24:57,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:24:57" (3/3) ... [2021-01-26 17:24:57,987 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2021-01-26 17:24:58,003 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:24:58,003 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:24:58,007 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:24:58,008 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:24:58,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,080 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,080 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:58,097 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:24:58,112 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:24:58,153 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:24:58,153 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:24:58,153 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:24:58,153 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:24:58,153 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:24:58,154 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:24:58,154 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:24:58,154 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:24:58,172 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:24:59,117 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:24:59,221 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:59,222 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] [2021-01-26 17:24:59,223 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:59,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2021-01-26 17:24:59,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:59,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512997622] [2021-01-26 17:24:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:59,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512997622] [2021-01-26 17:24:59,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:59,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:24:59,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219392889] [2021-01-26 17:24:59,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:24:59,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:59,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:24:59,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:24:59,930 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:00,350 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2021-01-26 17:25:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:25:00,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 17:25:00,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:00,415 INFO L225 Difference]: With dead ends: 11318 [2021-01-26 17:25:00,416 INFO L226 Difference]: Without dead ends: 4213 [2021-01-26 17:25:00,418 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:00,418 INFO L78 Accepts]: Start accepts. Automaton has 4213 states. Word has length 42 [2021-01-26 17:25:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:00,420 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states. [2021-01-26 17:25:00,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states. [2021-01-26 17:25:00,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:25:00,508 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:00,508 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] [2021-01-26 17:25:00,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:25:00,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:00,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:00,510 INFO L82 PathProgramCache]: Analyzing trace with hash 769586502, now seen corresponding path program 1 times [2021-01-26 17:25:00,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:00,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429760500] [2021-01-26 17:25:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:00,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429760500] [2021-01-26 17:25:00,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:00,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:00,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873403892] [2021-01-26 17:25:00,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:00,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:00,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:00,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:00,789 INFO L87 Difference]: Start difference. First operand 4213 states. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:01,067 INFO L93 Difference]: Finished difference Result 6009 states and 20215 transitions. [2021-01-26 17:25:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:25:01,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-01-26 17:25:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:01,107 INFO L225 Difference]: With dead ends: 6009 [2021-01-26 17:25:01,108 INFO L226 Difference]: Without dead ends: 3853 [2021-01-26 17:25:01,109 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:25:01,110 INFO L78 Accepts]: Start accepts. Automaton has 3853 states. Word has length 45 [2021-01-26 17:25:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:01,111 INFO L481 AbstractCegarLoop]: Abstraction has 3853 states. [2021-01-26 17:25:01,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3853 states. [2021-01-26 17:25:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:25:01,154 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:01,154 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] [2021-01-26 17:25:01,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:25:01,155 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:01,157 INFO L82 PathProgramCache]: Analyzing trace with hash -206594169, now seen corresponding path program 1 times [2021-01-26 17:25:01,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:01,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482663950] [2021-01-26 17:25:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:01,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482663950] [2021-01-26 17:25:01,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:01,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:01,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520760919] [2021-01-26 17:25:01,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:01,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:01,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:01,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:01,305 INFO L87 Difference]: Start difference. First operand 3853 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:01,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:01,546 INFO L93 Difference]: Finished difference Result 7073 states and 23211 transitions. [2021-01-26 17:25:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:25:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-26 17:25:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:01,586 INFO L225 Difference]: With dead ends: 7073 [2021-01-26 17:25:01,587 INFO L226 Difference]: Without dead ends: 4153 [2021-01-26 17:25:01,587 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:25:01,631 INFO L78 Accepts]: Start accepts. Automaton has 4153 states. Word has length 47 [2021-01-26 17:25:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:01,632 INFO L481 AbstractCegarLoop]: Abstraction has 4153 states. [2021-01-26 17:25:01,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states. [2021-01-26 17:25:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:25:01,648 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:01,649 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] [2021-01-26 17:25:01,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:25:01,649 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:01,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:01,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2021265509, now seen corresponding path program 1 times [2021-01-26 17:25:01,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:01,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960681668] [2021-01-26 17:25:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:01,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960681668] [2021-01-26 17:25:01,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:01,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:01,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528040108] [2021-01-26 17:25:01,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:01,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:01,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:01,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:01,839 INFO L87 Difference]: Start difference. First operand 4153 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:02,006 INFO L93 Difference]: Finished difference Result 6566 states and 21218 transitions. [2021-01-26 17:25:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:25:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-26 17:25:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:02,042 INFO L225 Difference]: With dead ends: 6566 [2021-01-26 17:25:02,043 INFO L226 Difference]: Without dead ends: 4111 [2021-01-26 17:25:02,043 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:02,043 INFO L78 Accepts]: Start accepts. Automaton has 4111 states. Word has length 48 [2021-01-26 17:25:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:02,044 INFO L481 AbstractCegarLoop]: Abstraction has 4111 states. [2021-01-26 17:25:02,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4111 states. [2021-01-26 17:25:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:25:02,058 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:02,058 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] [2021-01-26 17:25:02,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:25:02,059 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:02,060 INFO L82 PathProgramCache]: Analyzing trace with hash -215712537, now seen corresponding path program 2 times [2021-01-26 17:25:02,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:02,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798061180] [2021-01-26 17:25:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:02,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798061180] [2021-01-26 17:25:02,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:02,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:25:02,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645041147] [2021-01-26 17:25:02,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:25:02,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:02,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:25:02,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:25:02,181 INFO L87 Difference]: Start difference. First operand 4111 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:02,381 INFO L93 Difference]: Finished difference Result 3983 states and 12750 transitions. [2021-01-26 17:25:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:25:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-26 17:25:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:02,391 INFO L225 Difference]: With dead ends: 3983 [2021-01-26 17:25:02,391 INFO L226 Difference]: Without dead ends: 1760 [2021-01-26 17:25:02,391 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:02,392 INFO L78 Accepts]: Start accepts. Automaton has 1760 states. Word has length 48 [2021-01-26 17:25:02,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:02,392 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states. [2021-01-26 17:25:02,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states. [2021-01-26 17:25:02,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:25:02,399 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:02,399 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] [2021-01-26 17:25:02,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:25:02,399 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:02,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:02,400 INFO L82 PathProgramCache]: Analyzing trace with hash 486135988, now seen corresponding path program 1 times [2021-01-26 17:25:02,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:02,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270097099] [2021-01-26 17:25:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:02,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270097099] [2021-01-26 17:25:02,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:02,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:25:02,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436247910] [2021-01-26 17:25:02,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:25:02,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:02,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:25:02,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:25:02,520 INFO L87 Difference]: Start difference. First operand 1760 states. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:02,668 INFO L93 Difference]: Finished difference Result 2226 states and 6963 transitions. [2021-01-26 17:25:02,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:25:02,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-26 17:25:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:02,677 INFO L225 Difference]: With dead ends: 2226 [2021-01-26 17:25:02,677 INFO L226 Difference]: Without dead ends: 1634 [2021-01-26 17:25:02,677 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:02,678 INFO L78 Accepts]: Start accepts. Automaton has 1634 states. Word has length 50 [2021-01-26 17:25:02,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:02,679 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states. [2021-01-26 17:25:02,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states. [2021-01-26 17:25:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:25:02,685 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:02,685 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] [2021-01-26 17:25:02,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:25:02,686 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:02,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1200608003, now seen corresponding path program 1 times [2021-01-26 17:25:02,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:02,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530869465] [2021-01-26 17:25:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:02,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530869465] [2021-01-26 17:25:02,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:02,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:02,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769719123] [2021-01-26 17:25:02,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:02,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:02,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:02,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:02,887 INFO L87 Difference]: Start difference. First operand 1634 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:03,094 INFO L93 Difference]: Finished difference Result 1793 states and 5496 transitions. [2021-01-26 17:25:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:25:03,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-26 17:25:03,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:03,100 INFO L225 Difference]: With dead ends: 1793 [2021-01-26 17:25:03,101 INFO L226 Difference]: Without dead ends: 1289 [2021-01-26 17:25:03,101 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:25:03,101 INFO L78 Accepts]: Start accepts. Automaton has 1289 states. Word has length 51 [2021-01-26 17:25:03,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:03,102 INFO L481 AbstractCegarLoop]: Abstraction has 1289 states. [2021-01-26 17:25:03,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states. [2021-01-26 17:25:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:25:03,107 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:03,107 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] [2021-01-26 17:25:03,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:25:03,107 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:03,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2063614658, now seen corresponding path program 1 times [2021-01-26 17:25:03,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:03,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149472280] [2021-01-26 17:25:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:03,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149472280] [2021-01-26 17:25:03,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:03,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:25:03,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187752373] [2021-01-26 17:25:03,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:25:03,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:03,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:25:03,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:25:03,224 INFO L87 Difference]: Start difference. First operand 1289 states. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:03,427 INFO L93 Difference]: Finished difference Result 1055 states and 3066 transitions. [2021-01-26 17:25:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:25:03,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-26 17:25:03,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:03,431 INFO L225 Difference]: With dead ends: 1055 [2021-01-26 17:25:03,431 INFO L226 Difference]: Without dead ends: 731 [2021-01-26 17:25:03,432 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:25:03,432 INFO L78 Accepts]: Start accepts. Automaton has 731 states. Word has length 52 [2021-01-26 17:25:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:03,433 INFO L481 AbstractCegarLoop]: Abstraction has 731 states. [2021-01-26 17:25:03,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states. [2021-01-26 17:25:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:25:03,438 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:25:03,438 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] [2021-01-26 17:25:03,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:25:03,439 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:25:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:25:03,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1950903709, now seen corresponding path program 1 times [2021-01-26 17:25:03,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:25:03,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253629529] [2021-01-26 17:25:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:25:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:25:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:25:03,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253629529] [2021-01-26 17:25:03,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:25:03,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:25:03,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946803812] [2021-01-26 17:25:03,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:25:03,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:25:03,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:25:03,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:25:03,617 INFO L87 Difference]: Start difference. First operand 731 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:25:03,697 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2021-01-26 17:25:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:25:03,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:25:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:25:03,698 INFO L225 Difference]: With dead ends: 623 [2021-01-26 17:25:03,698 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:25:03,699 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:25:03,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-26 17:25:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:25:03,704 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:25:03,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:25:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:25:03,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:25:03,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-26 17:25:03,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:25:03 BasicIcfg [2021-01-26 17:25:03,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:25:03,715 INFO L168 Benchmark]: Toolchain (without parser) took 7335.64 ms. Allocated memory was 302.0 MB in the beginning and 675.3 MB in the end (delta: 373.3 MB). Free memory was 276.3 MB in the beginning and 470.8 MB in the end (delta: -194.5 MB). Peak memory consumption was 180.9 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:03,715 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:25:03,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.64 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:03,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:25:03,719 INFO L168 Benchmark]: Boogie Preprocessor took 29.34 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:03,723 INFO L168 Benchmark]: RCFGBuilder took 686.43 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 249.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:03,725 INFO L168 Benchmark]: TraceAbstraction took 5731.73 ms. Allocated memory was 302.0 MB in the beginning and 675.3 MB in the end (delta: 373.3 MB). Free memory was 249.1 MB in the beginning and 470.8 MB in the end (delta: -221.7 MB). Peak memory consumption was 154.7 MB. Max. memory is 16.0 GB. [2021-01-26 17:25:03,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 809.64 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.25 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.34 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 272.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 686.43 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 249.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5731.73 ms. Allocated memory was 302.0 MB in the beginning and 675.3 MB in the end (delta: 373.3 MB). Free memory was 249.1 MB in the beginning and 470.8 MB in the end (delta: -221.7 MB). Peak memory consumption was 154.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 888 SDtfs, 1156 SDslu, 2937 SDs, 0 SdLazy, 349 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 52138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...